201121322211 has 6 divisors (see below), whose sum is σ = 290508576540. Its totient is φ = 134080881468.

The previous prime is 201121322201. The next prime is 201121322251. The reversal of 201121322211 is 112223121102.

201121322211 is a `hidden beast` number, since 20 + 112 + 1 + 322 + 211 = 666.

It is not a de Polignac number, because 201121322211 - 2⁶ = 201121322147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201121322201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11173406781 + ... + 11173406798.

It is an arithmetic number, because the mean of its divisors is an integer number (48418096090).

Almost surely, 2^201121322211 is an apocalyptic number.

201121322211 is a deficient number, since it is larger than the sum of its proper divisors (89387254329).

201121322211 is a wasteful number, since it uses less digits than its factorization.

201121322211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22346813585 (or 22346813582 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 201121322211 its reverse (112223121102), we get a palindrome (313344443313).

The spelling of 201121322211 in words is "two hundred one billion, one hundred twenty-one million, three hundred twenty-two thousand, two hundred eleven".